CVE-2023-3745 — A heap-based buffer overflow issue was found in ImageMagick's PushCharPixel() fu

A heap-based buffer overflow issue was found in ImageMagick's PushCharPixel() function in quantum-private.h. This issue may allow a local attacker to trick the user into opening a specially crafted file, triggering an out-of-bounds read error and allowing an application to c

01What is this vulnerability?

A heap-based buffer overflow issue was found in ImageMagick's PushCharPixel() function in quantum-private.h. This issue may allow a local attacker to trick the user into opening a specially crafted file, triggering an out-of-bounds read error and allowing an application to crash, resulting in a denial of service.

02Affected products

Vendor	Product	Versions
Red Hat	Red Hat Enterprise Linux 6	unspecified
Red Hat	Red Hat Enterprise Linux 7	unspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-07-24T15:19:23.319Z
• Last modified: 2025-11-20T17:39:59.167Z

09References

• access.redhat.com — https://access.redhat.com/security/cve/CVE-2023-3745
• bugzilla.redhat.com — https://bugzilla.redhat.com/show_bug.cgi?id=2223557
• github.com — https://github.com/ImageMagick/ImageMagick/commit/54cdc146bbe50018526770be201b56…
• github.com — https://github.com/ImageMagick/ImageMagick/commit/651672f19c75161a6159d9b6838fd3…
• github.com — https://github.com/ImageMagick/ImageMagick/issues/1857
• github.com — https://github.com/ImageMagick/ImageMagick6/commit/7486477aa00c5c7856b111506da07…
• github.com — https://github.com/ImageMagick/ImageMagick6/commit/b466a96965afc1308a4ace93f5535…